Tilt results in fling moving in a reverse direction

[tobrun]

mitigates #5281, this PR impacts the fling gesture by

• limiting the input for moveBy based on tilt current value (ranges from 1/2 -> 1/8)
• lower limiting with no tilt, fling gesture shifts more
• lower animation time, makes animation feel more natural and snappy (removes laggy ending)

@cammace can you test this out? feel free to play with the variables to get the best possible UX.

[mention-bot]

@tobrun, thanks for your PR! By analyzing this pull request, we identified @zugaldia and @jfirebaugh to be potential reviewers.

[cammace]

👍 good for now. Noting that we might want to revisit this later on though.